PLEASE Help With Speedo Gear ASAP

[AllMotor9450]

I have a 94 Mustang Gt 5.0. I just installed 3:73 Gears What Speedo Gear Do I Need is it the 23 tooth? I need to know for sure im trying to order asap my miles are going up like crazy.

 

[bimmertech]

yes 23 tooth, but your speedo will still be 5% high

 

[GRGT1994]

or speed cal

 

[AllMotor9450]

it says the 23 tooth is for the 3:55 gears and the 3:73s are N/A?

 

[bimmertech]

it says the 23 tooth is for the 3:55 gears and the 3:73s are N/A?

it's as close as you're gonna get without disassembling the trans and changing out the output shaft gear, hence the 5% still inaccuaracy.

 

[94-302-vert]

Or the speed cal as I have also heard that the 23t gear is a Jeep part and thereore some have had it wear excessively fast (few hundred miles) while others have been fine for many thousands of miles.

Due to the 5% off & the possibility of the gear wearing I decided to go with the speed cal myself. This will also allow me to correct my speedo should I ever change tire sizes.

 

[stang_dan]

hey how do the speed cal work i have 3.55 gears and white facew gauges that got to like 150mph so im all messed up. and i also am goin to be getting 17 in rims soon which is also goin to change it and how much are they

thanks dan